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Finding the Fourth Proportional to 55,476.66, 83,214.99 and 47,136.90

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Solution

The fourth proportional to 55,476.66, 83,214.99 and 47,136.90 is: 70,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,476.66 : 83,214.99 = 47,136.90 : x
  2. Step 2: Convert to fraction form
    55,476.66/83,214.99 = 47,136.90/x
  3. Step 3: Cross multiply
    55,476.66x = 83,214.99 × 47,136.90
  4. Step 4: Simplify right side
    55,476.66x = 3,922,496,662.13
  5. Step 5: Solve for x
    x = 3,922,496,662.13/55,476.66
  6. Step 6: Final answer
    x = 70,705.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.